CN102035733A - Method for establishing serial data transparent transmission channel by Ethernet - Google Patents
Method for establishing serial data transparent transmission channel by Ethernet Download PDFInfo
- Publication number
- CN102035733A CN102035733A CN2010105707472A CN201010570747A CN102035733A CN 102035733 A CN102035733 A CN 102035733A CN 2010105707472 A CN2010105707472 A CN 2010105707472A CN 201010570747 A CN201010570747 A CN 201010570747A CN 102035733 A CN102035733 A CN 102035733A
- Authority
- CN
- China
- Prior art keywords
- data
- serial data
- buffer area
- packet
- ethernet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Abstract
The invention provides a method for establishing a serial data transparent transmission channel by Ethernet. In the method, a serial data transmitting unit samples serial data to form data packets; a serial data receiving unit receives the data packets through the Ethernet; the serial data receiving unit transmits a data packet index signal to a data control output unit, analyzes frame sequence information and then transmits the data packet index signal to a data caching unit together with valid data; the data caching unit saves the data packets in a buffer zone in sequence; the data caching unit transmits the number of the data packets to a quickly-empty quickly-full unit; the quickly-empty quickly-full unit generates an adjustment index signal; the data control output unit generates a data transmitting control signal to a data output unit; a rate adjustment unit completes quickly-empty quickly-full adjustment of a caching zone; and the data outputting unit transmits data in the caching zone to the outside. In the method, Ethernet is used as a transmission medium, and Ethernet data packets are used for data transmission among transmission equipment, thereby reducing configuration information share in data transmission and improving the transmission efficiency of valid data.
Description
[technical field]
The present invention relates to the communications field, relate in particular to a kind of method of setting up the serial data transparent transmission channel by Ethernet.
[background technology]
In general, for UART (Universal Asynchronous Receiver/Transmitter, universal asynchronous reception/dispensing device) transmission method of data, mostly be to adopt special-purpose UART process chip according to UART relevant parameter (as baud rate, start bit, significance bit, check digit, position of rest) at receiving terminal, extract the occurrence of UART transmission, send to the transmitting terminal of UART again by communication network.Transmitting terminal is exported to access device according to parameters such as certain baud rate, start bit, significance bit, check digit, position of rests with data according to the telex network channel related parameter.
Processing mode for Manchester code data and above-mentioned UART is similar, also is to adopt the mode of special chip to transmit.
In the prior art,, adopt timing sampling inquiry or state to change to cause the mode of interruption to carry out the collection of quantity of state, give receiving equipment with state transfer again for the transmission of logic level signal.
Yet, the baud rate of normally used UART has 115200,57600,38400,19200,9600,4800,2400,1200,600 etc., there are various modes such as 5-bit, 6-bit, 7-bit, 8-bit active data position during the UART transmission, check digit has various modes such as odd, even parity check, no parity check, and position of rest has various modes such as 1-bit, 1.5-bit, 2-bit.When using this technology to carry out the transparent transmission of UART, must clearly understand the specific performance parameter mode of the baud rate, valid data position etc. of access communications circuit, require to carry out a series of relevant settings according to reality.In communication system, the communication interface of access is according to the environment for use difference, and the not equal factor of the equipment of butt joint makes the parameter of each circuit-switched data all have nothing in common with each other, and all passages add will form a very large allocation list together.
The question marks that run in the transmission of Manchester code and the transmission of UART seemingly.The serial data signal of these several similar performances such as UART, Manchester code, logic level signal in existing transmission system, all adopts different receive modes and treatment mechanism.In the communication system,, all can not support the access of other several equipment to a kind of access device of signaling interface wherein.Owing to the difference of access device, just increased the diversity of equipment, increased the cost of equipment.
Another mode commonly used is in synchronous digital transmission system, and the receiving terminal of serial data sends to the transmitting terminal of serial data again by the mode image data of sampling by communication network.
Adopt this communication pattern, communication network adopts synchronous digital transmission network usually, as SDH (Synchronous Digital Hierarchy, SDH (Synchronous Digital Hierarchy)) transmission network, the reception of all devices and the processing clock of transmission in this network requirement network are derived from same clock source.Promptly the operating clock at the sending ending equipment of serial data need return on the clock of serial data receiving device according to a series of mechanism, makes the work clock of network terminal device be in identical operating frequency.After serial data arrived the serial data transmitting terminal through transmission network, the serial data transmitting terminal was outwards exported serial data according to the clock frequency of serial data receiving terminal again.Because this technology must could realize in synchronous digital transmission network, just increased certain limitation for the transport vehicle of serial data, and this transmission mechanism can not be applied in as network equipments such as Ethernets, and the transmitting terminal of serial data can't recover to transmit in the network of serial data receiving terminal clock.
[summary of the invention]
In view of this, the invention provides a kind of method that Ethernet is set up the serial data transparent transmission channel of passing through that improves valid data transmission efficiency and be not limited to synchronizing network.
A kind of method of setting up the serial data transparent transmission channel by Ethernet, serial data sends to the serial data receiving terminal from the serial data transmitting terminal by Ethernet, may further comprise the steps: the serial data transmitter unit of serial data transmitting terminal is in the serial data once sampling of each work clock to input, and so continuous sampling forms packet to be sent; The Ethernet serial data receiving element of serial data receiving terminal receives from the serial data sending and receiving by Ethernet and penetrates the packet that the unit sends; Ethernet serial data receiving element is transferred to the Data Control output unit of serial data receiving terminal with the packet index signal that receives, and parses after the frame preface information data buffer storage unit that frame preface information and valid data is transferred to together the serial data receiving terminal from packet; Data buffer storage unit deposits data packet between in buffering area successively according to the order of sequence according to the frame preface of the packet that receives; Data buffer storage unit is transferred to middle cached data packet number between buffer area the fast empty fast unit of expiring of buffer area of serial data receiving terminal; The fast empty fast completely unit of buffer area receives to produce after the number of data packets in the buffer area adjusts index signal; After the Data Control output unit receives the packet receiving index signal of being transmitted by Ethernet serial data receiving element, produce data and transmit control signal to the data output unit of serial data receiving terminal; The speed adjustment unit of serial data receiving terminal receives the fast empty fast fast sky of expiring the judging unit transmission of buffer area expires index signal soon, finishes the fast empty and fast full adjustment of buffer area; And the data output unit sends the data in the buffering area under the common effect of speed adjustment unit and Data Control output unit.
Preferably, described buffer area is fast empty fast expires the unit and receives in the buffer area after the number of data packets, produce the adjustment index signal according to following mode: when the fast sky of buffer area, the fast empty fast judging unit of expiring of buffer area produces the speed adjustment unit that fast empty index signal is exported to the serial data receiving terminal, requires output to slow down the transmission speed of data; When buffer area was expired soon, the fast empty fast completely judging unit of buffer area produced the fast index signal that expires and exports to the speed adjustment unit, requires output to accelerate the transmission speed of data; When buffer area just often, neither produce fast empty index signal and also do not produce the fast index signal that expires, data send according to normal transmission speed.
Preferably, when the number of packet in the buffer area was 0, the expression buffer area was empty; When the number of packet in the buffer area was 8, the expression buffer area was for full; When the number of packet in the buffer area smaller or equal to 3 the time, the expression buffer area is empty soon; When the number of packet in the buffer area more than or equal to 5 the time, the expression buffer area is full soon; When the packet number was 4 in the buffer area, the expression buffer area was normal.
Preferably, when buffer area was fast empty, the data output unit made that the speed of reading of data slows down from buffer area for 2 times thereby this bit sent continuously when sending the 1st bit of 1 packet; When packet in the buffer area is adjusted to 4, stop to adjust.
Preferably, when buffer area was expired soon, the data output unit made that the speed of reading of data accelerates from buffer area thereby delete this bit when sending the 1st bit of 1 packet; When data in the buffer area are adjusted to 4, stop to adjust.
Preferably, at the serial data transmitter unit of described serial data transmitting terminal in the serial data once sampling step of each work clock to input, 1 byte is formed in so continuous 8 samplings, 1020 bytes of continuous sampling are packaged into 1 bag, increase the header packet information of 4 bytes in the packet header of each bag.
Preferably, with the frame preface information of 6 bit identification bags, with the port information of 4 bit identification bags, with 1 bit identification serial data identification information, with 1 bit identification check information, other bit is reserved expansion in the described header packet information.
Preferably, the minimum system operating time of serial data transmission system is 8 times of speed of the high-transmission baud rate supported of serial data transmitting terminal and serial data receiving terminal.
Serial data transparent transmission method provided by the present invention adopts the media of Ethernet as transparent transmission, mode with the Ethernet data bag between the transmission equipment is carried out transfer of data, thereby reduced configuration information accounting in the transfer of data, improved the efficiency of transmission of valid data.
[description of drawings]
Fig. 1 is the schematic diagram that common employed serial data receives and sends.
Fig. 2 sets up the schematic diagram of the method for serial data transparent transmission channel by Ethernet for the preferred embodiments of the present invention.
The fast adjustment mode when empty of buffer area when Fig. 3 A adjusts for adopting the method for setting up the serial data transparent transmission channel by Ethernet of the present invention.
Buffer area adjustment mode just often when Fig. 3 B adjusts for adopting the method for setting up the serial data transparent transmission channel by Ethernet of the present invention.
Adjustment mode when buffer area was expired soon when Fig. 3 C adjusted for adopting the method for setting up the serial data transparent transmission channel by Ethernet of the present invention.
[embodiment]
In order to understand the present invention better, inventive embodiment is described in detail below with reference to accompanying drawing.
In order to overcome the problems referred to above, the invention provides a kind of method of setting up the serial data transparent transmission channel by Ethernet, when there are deviation in the system works clock of realization serial data receiving equipment and serial data transmitting apparatus work clock, the principle of serial data reliable transmission and implementation.When adopting the present invention to carry out the serial data transparent transmission, the user does not need to be concerned about the parameter information of the internal agreement of serial data, when transmitting as the data flow of serials such as UART data, Manchester code data, logic level signal data, communication equipment has been carried out the unification of height, and can in the digital transport network asynchronous fully, move, make the transparent transmission of serial data no longer be confined to synchronous network as receiving equipment such as Ethernet and transmitting apparatus work clock.Serial data channel mainly refers to the UART data channel, Manchester code passage and logic level signal passage etc.
Common pass through that Ethernet carries out that serial data receives and transmitting system as shown in fig. 1, the input of the serial data transmitting terminal 101 reception serial datas in a certain device end, and send to the serial data receiving terminal 103 of another equipment by Ethernet 102.Equally, the serial data transmitting terminal 105 of another device end also can send to the serial data receiving terminal 104 of a certain device end with serial data by Ethernet 102, thereby forms duplex channel.
The method that the preferred embodiments of the present invention are set up the serial data transparent transmission channel by Ethernet as shown in Figure 2.Serial data transmitter unit 201 is positioned at serial data transmitting terminal 101 equipment, is connected with rear end Ethernet 202 with the serial data of external interface input, mainly finishes sampling from the data of serial line interface reception, package and be transferred on the Ethernet 202 according to the interface relationship of Ethernet.
Ethernet serial data receiving element 203 is positioned at serial data transmitting terminal 103 equipment, be connected with Ethernet 202, data buffer storage unit 204, Data Control output unit 208, mainly finish from according to the interface relationship of Ethernet 202 from network receive serial data, unpack, with correct serial data content delivery to data buffer storage unit 204, simultaneously the packet index signal that receives is sent to Data Control output unit 208, enable for referencial use so that whether produce the control of data transmission.
Data buffer storage unit 204 also links to each other with data output unit 205 with the fast empty fast judging unit 206 of expiring of buffer area, mainly finish from the buffer memory of the packet of Ethernet serial data receiving element 203 receptions, number with cached data packet is transferred to the fast empty fast judging unit 206 of expiring of buffer area simultaneously, and gives data output unit 205 with the content delivery in the buffering area.
The fast sky of data is expired judging unit 206 soon and is mainly finished the fast empty fast full judgement of buffer area according to the data of packet in the buffer area.
Therefore this solution of setting up the serial data transparent transmission channel by Ethernet can use FPGA (Field Programmable Gate Array, field programmable gate array) device to realize.The function that transmitting terminal is finished serial data collection, package, sent to Ethernet in this treatment mechanism; Receiving terminal receives packet and the timing relationship according to this locality behind its buffer memory is sent packet.When each terminal has the transmitting terminal of serial data and receiving terminal module simultaneously, just can realize the transmitted in both directions of data.
Each device end is set up 10 tunnel serial data transparent channels, realizes the reception and the sending function of 10 road bi-directional datas, and the bright passage of 10 Reuters works alone.Two device ends are according to achieving a butt joint by Ethernet as Fig. 1 mode in the system, all contain the data transmission module and the data reception module of the bright passage of data 10 Reuters in every device end.
In order to make technical scheme of the present invention clearer, below with reference to accompanying drawing one the tunnel to be example wherein, according to corresponding example, illustrate the detail of setting up the method for serial data transparent transmission channel by Ethernet provided by the invention simultaneously.
At first, 8 times of speed of the high-transmission baud rate should be minimum supported with equipment of serial data transmission system are as the system operation clock.For example, if serial data stream is that the maximum transmitted baud rate of UART signal and UART passage institute data carried by data is 115200, then as the system operation clock, promptly the minimum work clock of system is 921600Hz to the serial data transmission system minimum with 8 times of speed of 115200.
Serial data transmitter unit 201 is in the serial data once sampling of each work clock to input, and 1 byte is formed in 8 times so continuous samplings.In a preferred embodiment, 1020 bytes of continuous sampling can be packaged into 1 bag, increase the header packet information of 4 bytes in the packet header of each bag.In the header packet information with the frame preface information of 6 bit identification bags, with the port information of 4 bit identification bags, with 1 bit identification serial data identification information and with 1 bit identification check information, other bit is reserved expansion.Frame preface message transmission is given the serial data transmitting terminal, be used to regulate since cause during the Ethernet transmission owing to receive the bag order and send problems such as the bag order is inconsistent.Port information is transferred to the Ethernet sending module of serial data transmitter unit 201 rear ends, is used for distinguishing a plurality of serial data ports of this equipment, and according to different port numbers, the destination that specified data is different receives.Check information is used for the detection line transmission course and has or not error code to produce.So, after the serial data receiving terminal has collected a complete packet, send the data to the Ethernet sending module of serial data transmitting terminal, thereby data are sent on the Ethernet.
Ethernet serial data receiving element 203 receives from the serial data sending and receiving by Ethernet 202 and penetrates the packet that unit 201 sends.
Ethernet serial data receiving element 203 is transferred to Data Control output unit 208 with the packet index signal that receives.
Ethernet serial data receiving element 203 parses frame preface information after receiving packet from packet, and the valid data of frame preface information and 1020 bytes are transferred to data buffer storage unit 204 together.The packet that data buffer storage unit 204 buffer memorys receive from network.In a preferred embodiment, be divided into 8 between buffer area, each buffer area is used for packet of finishing of buffer memory.
According to the frame preface of the packet that receives, data buffer storage unit 204 deposits data packet between in buffering area successively according to the order of sequence.
Data buffer storage unit 204 is transferred to the fast empty fast unit 206 of expiring of buffer area with middle cached data packet number between buffer area.
Buffer area is fast empty fast expires unit 206 and receives in the buffer area after the number of data packets, produces the adjustment index signal according to following mode.When the fast sky of buffer area, the fast empty fast fast empty index signal of judging unit 206 generations that expires of buffer area is exported to speed adjustment unit 207, requires output to slow down the transmission speed of data.When buffer area was expired soon, the fast empty fast completely judging unit 206 of buffer area produced the fast index signal that expires and exports to the speed adjustment unit, requires output to accelerate the transmission speed of data.When buffer area just often neither produces fast empty index signal, do not produce the fast index signal that expires yet, data send according to normal transmission speed.As shown in Fig. 3 A to Fig. 3 C, the number of packet is 0 o'clock in the buffer area, and the expression buffer area is empty; When the number of packet in the buffer area was 8, the expression buffer area was for full.In a preferred embodiment, when the number of packet in the buffer area smaller or equal to 3 the time, the expression buffer area is empty soon; When the number of packet in the buffer area more than or equal to 5 the time, the expression buffer area is full soon; When the packet number was 4 in the buffer area, the expression buffer area was normal.Buffer area is decided to be fast space base standard and is decided to be the fast benchmark of expiring with 53 is to define owing to the data packet flow shakiness of the congested generation of ethernet network in order effectively to suppress.When on Ethernet, transmitting, the transmission of a last moment packet is normal, the module of serial data also is in the time delay scope that can control, other user uses the data of the big flow of Network Transmission on the unexpected Ethernet, make the packet of transmitting serial data overstock at a certain node of network, the long period can't arrive the packet receiving terminal.Yet serial data receiving terminal 103 is still also outwards sending data, at this moment since before adjustment mechanism, make to also have in the metadata cache interval of data receiver 103 3 packets can be at least, thereby reduce the possibility that error code occurs for transmission.When Ethernet becomes just often from congested, serial data receiving terminal 103 may receive a plurality of packets from network once since before have only 5 data buffer memory bags at most in the buffering area, so minimum can also tolerate receive 3 packets simultaneously.If network is very poor, can increases the quantity of buffer area according to actual conditions, and regulate fast empty fast full benchmark.Usually, adopt the clock of 921600Hz to carry out the sampling of data, gather 1020 bytes of 1 packet, need the time to be about 8.9 milliseconds time, three packets are 26.7 milliseconds time.The situation that makes in the private network time interval between 2 packets change to reach 26.7 milliseconds in communication seldom, so it has been generally acknowledged that adopt between 8 buffer areas enough.
After Data Control output unit 208 receives the packet receiving index signal of being transmitted by Ethernet serial data receiving element 203, produce data and transmit control signal to data output unit 205.When Ethernet serial data receiving element 203 not when network receives packet, close data output unit 205, make data output unit 205 send idle serial data signal to external equipment.When Ethernet serial data receiving element 203 does not become when receiving packet from receiving packet for a long time, Data Control output unit 208 statistics packet receiving numbers.When the packet receiving number was less than 4, Data Control output unit 208 was closed always.When reaching and surpass 4, Data Control output unit 208 is enabled transmission to open, data output unit 205 outwards sends data.When transmission enabled to close, data buffer storage unit 204 was not to data output unit transmission data.
Serial data receiving terminal 103 adopts 1020 bytes to adjust 1 time, each mode of adjusting 1 bit, i.e. 8.9 milliseconds of adjustment once, for baud rate when the UART transfer of data more than 9600, at most only have 1 adjustment in the active data transmission course, when carrying out transfer of data for the baud rate that adopts flank speed 115200, process serial data error code speaker's phase tests, there is not to find to have the phenomenon of error code reception, for the baud rate below 9600, this adjustment almost can be ignored the influence of data and not remember.Usually, in process of production, the frequency departure of the crystal oscillator of finished product in the scope of 50PPM, promptly 50/1000000ths.Serial data transmitting terminal 103 adopts 1020 bytes to adjust 1 time, and the adjustment capability that is equivalent to frequency deviation is 122.5PPM, much larger than the frequency difference of crystal oscillator.So in communication process, can allow the equipment buffer area recover normal by adjustment.
Need to prove that also what provide among the present invention thisly sets up the method and system solution of serial data transparent transmission channel by Ethernet, specifically can be and utilizes fpga chip to realize.During specific implementation, those of ordinary skill in the art can decompose or merge functional module mentioned among the present invention according to actual conditions, in this not detailed annotation one by one.
In sum, this method and system solution of setting up the serial data transparent transmission channel by Ethernet provided by the present invention, no longer be subjected to the different baud rates of subscriber equipment, the restriction of different agreement, can realize not being higher than the transmission of all serial datas of high bit rate, simplify transmission equipment greatly, and then improved user's experience property.
This method of setting up the serial data transparent transmission channel by Ethernet provided by the invention, when enable pass is crossed the Ethernet transmitting serial data, the agreement that no longer is subjected to serial data changes and changes, and can support to be lower than the transmission and the reception of all serial datas under the high bit rate.Make equipment can support simultaneously the data flow of serials such as UART data, Manchester code data, logic level signal data is transmitted, and biography no longer is confined to synchronous digital transmission network for communication system.
The above embodiment has only expressed several execution mode of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to claim of the present invention.Should be pointed out that for the person of ordinary skill of the art without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection range of patent of the present invention should be as the criterion with claims.
Claims (8)
1. set up the method for serial data transparent transmission channel by Ethernet for one kind, serial data sends to the serial data receiving terminal from the serial data transmitting terminal by Ethernet, may further comprise the steps:
The serial data transmitter unit of serial data transmitting terminal is in the serial data once sampling of each work clock to input, and so continuous sampling forms packet to be sent;
The Ethernet serial data receiving element of serial data receiving terminal receives from the serial data sending and receiving by Ethernet and penetrates the packet that the unit sends;
Ethernet serial data receiving element is transferred to the Data Control output unit of serial data receiving terminal with the packet index signal that receives, and parses after the frame preface information data buffer storage unit that frame preface information and valid data is transferred to together the serial data receiving terminal from packet;
Data buffer storage unit deposits data packet between in buffering area successively according to the order of sequence according to the frame preface of the packet that receives;
Data buffer storage unit is transferred to middle cached data packet number between buffer area the fast empty fast unit of expiring of buffer area of serial data receiving terminal;
The fast empty fast completely unit of buffer area receives to produce after the number of data packets in the buffer area adjusts index signal;
After the Data Control output unit receives the packet receiving index signal of being transmitted by Ethernet serial data receiving element, produce data and transmit control signal to the data output unit of serial data receiving terminal;
The speed adjustment unit of serial data receiving terminal receives the fast empty fast fast sky of expiring the judging unit transmission of buffer area expires index signal soon, finishes the fast empty and fast full adjustment of buffer area; And
The data output unit sends the data in the buffering area under the common effect of speed adjustment unit and Data Control output unit.
2. the method for setting up the serial data transparent transmission channel by Ethernet according to claim 1, it is characterized in that: described buffer area is fast empty fast expires the unit and receives in the buffer area after the number of data packets, produce the adjustment index signal according to following mode: when the fast sky of buffer area, the fast empty fast judging unit of expiring of buffer area produces the speed adjustment unit that fast empty index signal is exported to the serial data receiving terminal, requires output to slow down the transmission speed of data; When buffer area was expired soon, the fast empty fast completely judging unit of buffer area produced the fast index signal that expires and exports to the speed adjustment unit, requires output to accelerate the transmission speed of data; When buffer area just often, neither produce fast empty index signal and also do not produce the fast index signal that expires, data send according to normal transmission speed.
3. according to claim 2ly set up the method for serial data transparent transmission channel by Ethernet, it is characterized in that: when the number of packet in the buffer area was 0, the expression buffer area be a sky; When the number of packet in the buffer area was 8, the expression buffer area was for full; When the number of packet in the buffer area smaller or equal to 3 the time, the expression buffer area is empty soon; When the number of packet in the buffer area more than or equal to 5 the time, the expression buffer area is full soon; When the packet number was 4 in the buffer area, the expression buffer area was normal.
4. the method for setting up the serial data transparent transmission channel by Ethernet according to claim 3, it is characterized in that: when the fast sky of buffer area, the data output unit makes that the speed of reading of data slows down from buffer area for 2 times thereby this bit sent continuously when sending the 1st bit of 1 packet; When packet in the buffer area is adjusted to 4, stop to adjust.
5. the method for setting up the serial data transparent transmission channel by Ethernet according to claim 4, it is characterized in that: when buffer area is expired soon, the data output unit makes that the speed of reading of data accelerates from buffer area thereby delete this bit when sending the 1st bit of 1 packet; When data in the buffer area are adjusted to 4, stop to adjust.
6. according to each described method of setting up the serial data transparent transmission channel by Ethernet in the claim 1 to 4, it is characterized in that: at the serial data transmitter unit of described serial data transmitting terminal in the serial data once sampling step of each work clock to input, 1 byte is formed in so continuous 8 samplings, 1020 bytes of continuous sampling are packaged into 1 bag, increase the header packet information of 4 bytes in the packet header of each bag.
7. the method for setting up the serial data transparent transmission channel by Ethernet according to claim 6, it is characterized in that: in the described header packet information with the frame preface information of 6 bit identification bags, port information with 4 bit identification bags, with 1 bit identification serial data identification information, with 1 bit identification check information, other bit is reserved expansion.
8. according to claim 6ly set up the method for serial data transparent transmission channel by Ethernet, it is characterized in that: the minimum system operating time of serial data transmission system is 8 times of speed of the high-transmission baud rate supported of serial data transmitting terminal and serial data receiving terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105707472A CN102035733B (en) | 2010-11-29 | 2010-11-29 | Method for establishing serial data transparent transmission channel by Ethernet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105707472A CN102035733B (en) | 2010-11-29 | 2010-11-29 | Method for establishing serial data transparent transmission channel by Ethernet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102035733A true CN102035733A (en) | 2011-04-27 |
| CN102035733B CN102035733B (en) | 2013-04-10 |
Family
ID=43888090
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105707472A Active CN102035733B (en) | 2010-11-29 | 2010-11-29 | Method for establishing serial data transparent transmission channel by Ethernet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102035733B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103888181A (en) * | 2014-03-28 | 2014-06-25 | 福建三元达通讯股份有限公司 | Low-delay Ethernet data transmission realizing method applied to digital repeater |
| CN106911545A (en) * | 2017-01-23 | 2017-06-30 | 北京东土军悦科技有限公司 | A kind of method and device that ST_BUS data are transmitted by Ethernet |
| CN111144748A (en) * | 2019-12-26 | 2020-05-12 | 上海京东到家元信信息技术有限公司 | Control list model based on historical work saturation and backlog list quantity |
| CN116781180A (en) * | 2023-06-05 | 2023-09-19 | 广州市高科通信技术股份有限公司 | PCM channel capacity expansion method and capacity expansion system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1472934A (en) * | 2002-07-29 | 2004-02-04 | 华为技术有限公司 | Method for carrying out synchronous digital chain connection processing protocol |
| CN101222433A (en) * | 2008-01-23 | 2008-07-16 | 华为技术有限公司 | Method, system and device for controlling data flux |
| US20080301371A1 (en) * | 2004-06-08 | 2008-12-04 | Freescale Semiconductor, Inc. | Memory Cache Control Arrangement and a Method of Performing a Coherency Operation Therefor |
-
2010
- 2010-11-29 CN CN2010105707472A patent/CN102035733B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1472934A (en) * | 2002-07-29 | 2004-02-04 | 华为技术有限公司 | Method for carrying out synchronous digital chain connection processing protocol |
| US20080301371A1 (en) * | 2004-06-08 | 2008-12-04 | Freescale Semiconductor, Inc. | Memory Cache Control Arrangement and a Method of Performing a Coherency Operation Therefor |
| CN101222433A (en) * | 2008-01-23 | 2008-07-16 | 华为技术有限公司 | Method, system and device for controlling data flux |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103888181A (en) * | 2014-03-28 | 2014-06-25 | 福建三元达通讯股份有限公司 | Low-delay Ethernet data transmission realizing method applied to digital repeater |
| CN106911545A (en) * | 2017-01-23 | 2017-06-30 | 北京东土军悦科技有限公司 | A kind of method and device that ST_BUS data are transmitted by Ethernet |
| CN106911545B (en) * | 2017-01-23 | 2020-04-24 | 北京东土军悦科技有限公司 | Method and device for transmitting ST _ BUS data through Ethernet |
| CN111144748A (en) * | 2019-12-26 | 2020-05-12 | 上海京东到家元信信息技术有限公司 | Control list model based on historical work saturation and backlog list quantity |
| CN111144748B (en) * | 2019-12-26 | 2023-12-08 | 上海京东到家元信信息技术有限公司 | Control list model based on historical work saturation and backlog list quantity |
| CN116781180A (en) * | 2023-06-05 | 2023-09-19 | 广州市高科通信技术股份有限公司 | PCM channel capacity expansion method and capacity expansion system |
| CN116781180B (en) * | 2023-06-05 | 2023-11-10 | 广州市高科通信技术股份有限公司 | PCM channel capacity expansion method and capacity expansion system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102035733B (en) | 2013-04-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR100603951B1 (en) | Wireless packet communication apparatus and method | |
| US11736978B2 (en) | Method and apparatus for receiving CPRI data stream, method and apparatus for receiving ethernet frame, and system | |
| GB2332128A (en) | Arrangement for transmitting packet data segments from a media access controller across multiple physical links | |
| EP2443908A1 (en) | Remote radio data transmission over ethernet | |
| WO2011147381A2 (en) | Method, system and apparatus for dynamically adjusting link | |
| CN102056227A (en) | Donor evolved node B, relay node and communication method thereof | |
| KR101820826B1 (en) | Systems and methods for sharing a serial communication port between a plurality of communication channels | |
| CN1351439A (en) | Method and device for packet transmission in packet data system | |
| CN104618019A (en) | WiFi (wireless fidelity) access system based on visible light transmission and data frame transformation method | |
| US20190165860A1 (en) | Method and apparatus for transmitting frame data between near-end device and remote device | |
| CN102035733B (en) | Method for establishing serial data transparent transmission channel by Ethernet | |
| US20100296519A1 (en) | Ethernet Physical Layer Repeater | |
| CN102821458B (en) | Dynamic link adjustment method and link management equipment | |
| US10531330B2 (en) | Frame start optimizing in telecommunications systems | |
| CN103220193A (en) | Device and method of Ethernet access transmission of repeater | |
| US11902172B2 (en) | Device and method for transferring identification and/or data flow control information between devices | |
| US20220149988A1 (en) | Method for Adjusting Transmission Rate, Processor, Network Device, and Network System | |
| CN102801639B (en) | Communication device and method for transmitting network management protocol by using E1 odd frame Sa bit | |
| US8542701B2 (en) | Method and device for determining timeslot configuration in TDM transmission | |
| WO2012071838A1 (en) | Multi-link clock recovery method and apparatus | |
| CN202998127U (en) | Communication device using E1 odd field Sa bit transmission network management protocol | |
| US20080310450A1 (en) | Method of Passing a Constant Bit Rate Digital Signal Through an Ethernet Interface and System for Carrying Out the Method | |
| KR20020041016A (en) | Data Transmission Protocol Device through Phone Line | |
| CN109560894B (en) | Method and equipment for adapting transmission rate of repeater | |
| CN101630996B (en) | Ethernet to unframed E1 converter and E1 loopback detection method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |